#!/usr/bin/env python3
# _*_coding:utf-8_*_
# cockroach
# email:donnie.fan@foxmail.com

class People(object):

    guoji = 'CN'

    def __init__(self,name,type,age=None):
        self.name = name
        self.type = type
        self.age = age

    def walk(self):
        print("[%s] walking" % self.name)

    def biang(self):
        print("[%s] biang,biang,biang" % self.name)


p1 = People("范洪涛","运维")
p2 = People("闫帅","测试")

print(p1.name,p1.type)
print(p2.name,p2.type)
p2.age = 99

print(p2.age,p2.guoji)
